Lasting-machine



T. H. SEELY.

LASTING MACHINE. APPLICATION FILED JAN-17,1919.

1399;892. Patented Dec.13, 1921.

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LASTING MACHINE.

APPLICATION FILED JAN.17, 1919.

. Patented Dec. 13, 1921.

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LASTING MACHINE.

APPLICATION FlLED mm, 1919.

Patented Dec.13, 1921.

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.1 z r A j A 19 NITE STATES PATENT OFFICE.

THOIVIAS H. SEELY, 0F MALDEN, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY CORPORATION, OF NE'W JERSEY.

To all whom it may concern 7 Be it known that I, THOMAS H. SEELY, a citizen of the United States, residing at Malden, in the county of; Middlesex and State of Massachusetts, have invented .cer

tain Improvements in Lasting-Machines, of

which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to lasting machines of the class employing a gripper for pulling an upper and laying it. over a last and preferably provided with means such as a wiper to press the upper into lastedpositiontobesecuredat the toe by tracks. The invention is illustrated as applied to a mach ne of-the general type shown in United States Letters.

Patent No. 584,744, granted June 15, .1897v upon the application of Ladd and Mcl eely, and has for one obgect to provide improved gripper operating mechanism adapted Ior use in machines of this type. At the, toe and i sometimes at other parts ofv the shoe the gripper is required to plait or fold the marginal portion of the upper upon the shoe bottom to take care. of the fullness which is incident to bending the upper inwardly over the convex; edge of the last bottom."

In machines ,of prior construction such as that of the patent referred to above the shoe making that this operation of the gripper of machines of prior construction does not strictly correspond to the operation effected by the hand workman with his pincers for the reason that the hand workman, while drawing the upper on the left side of a shoe too, as seen from the bottom, toward the right, gives his pincers a twisting movement in the same direction, towardthe right, or clockwisa'with the result that a plait or fold is formed in the upper between the pincer and the point last secured instead of being formed on the aovance side or toward the or rnrnnson, new JERSEY, aconroni rio v LAs'rmG-MAGHINE.

Specification of Letters Patent. Patented B 5313, 192 Application filed January 17, 1919. Serial No. 271,642. I i

unlasted' portion of the upper as is done by the gripper of hand method lasting machines as previously organized. lasting the right side of the toe the hand workman moves his pincers toward the left and twists them in the same. counter-clockwise.

Anobjeotofthis invention-is to provide a Conversely, when direction or hand method lasting machine which, while, I

retaining the many highly desirable and valuable features of prior machines of this type, will embody novel mechanism for op erating the gripper which will give itthe samemovements as those given to a, hand pinceriby a workmanin the handzlasting operation. j ,1

An important feature of the invention consistsin a novel organization including'a gripper having its shank arranged substantially perpendicular to the last bottom,

means for imparting lateral movements to,

the gripper, and -means for imparting atwisting movement to the gripperwhich is.

in-the same sense as the lateral movement, that is, when the lateral.movement, is 'toward the right the twisting movement :of the gripper, will be toward the right or clockwise as viewed from above. Conversely, when the lateral movement, is toward-the left the twisting movement of the gripper will be toward the left or counter-clockwise. This combination of movements of the grips per imitates accurately the action of the pincers as used by the hand laster and, results inja better disposition of the stock than is possiblein' machines of the handlmethod type as previously organized.

In-lasting a shoe it is the usual practice to have the upperin pulled over condition with a single tack holding'the upper at the end of the toe and a tack or tacks holding the upper at each side of the toe, the upper bul ing away from the last on bothsides of the toe between; the points secured by. 1

the tacks. With the upper in this condition the upper is lasted in McKay work from the,

away from the last on each side of the toe" tack, it is necessary to give the gripper prelimlnary position at one side or the other of the longitudinal median'line of the toe and to turn the gripper so that the gripping toe and power operated means for giving the gripper a further axial turning move ment in the same direction as that in which the gripper was turned in the preliminary setting of the gripper and for moving the gripper bodily inwardly of the shoe.

A further feature of the invention 'consists in means arranged for adjustment to vary the amount of angular o'r axlal turnof the operating parts of the machine.

ing movement imparted to the gripper in the preliminary settingand preferably withoutafi'ecting the amount of lateral movement given to the gripper in the preliminary setting. In the construction shown herein, when 7 adjustment is made to increase the manually effected turning movement, the amount of turning movement effected by power is diminished and vice versa {thetotal amount of turning movement remaining substantially the same.

' These'and other features of theinvention will appear more fully from the following detailed description when read'in connection with the accompanying drawings and will be pointed out in the appended claims.

In the drawings, a

Figure 1 is a side elevation of a hand method lasting machine embodying this invention g I Fig. 2 is a persp'ective view,'partly in sec tion,*of the'gripper operating mechanism Fig. 3 is a'perspective detail'of sepfiated parts of the mechanism shown in Fig. '2,

Fig. 4 is a Fi 2;

Fig. 5 is afront elevationof parts shown in Fig. 2;

. Fig. '6 is a diagrammatic view'indi'cating the mot-ion of parts shown in Fig. 5;

Fig. 7 is a view of the toe of a shoe showing in section the gripper in its preliminarypos1t1on and grasping the'upper and F 1g. 8 1s a similar view showing the grip per. performing its power operated move-' ments.

In the drawings, the numeral 2 indicates the column of the machine upon which the head 4 is mounted, the head supporting many On the head 4 is a rest 6 for giving support to the bottom of the last and a gage 8 has its end face in position to support the edge or side of the last. A gage 9 may be moved rearwardly to expose the thin gage 8 for use at the sides a and shank of the shoe, the edge gage mechanism, as well as the mechanism for supplying and driving the tacks of different size emsectional viewof parts shown ployed in lasting, being, preferably, and as 1 shown herein, similar to that disclosed and claimed in United States Letters Patent No. 999,233, granted August 1, 1911, upon appllcation of I add and Stiggins. The shoe, having been prepared for lasting by assembling an innersole, upper, lining and counter upon a last andpulling over the upper at the toe and sides as usual and securing it to the innersole by a tack or tacks at each of these places, is supported bottom upward against the rest 6 and laterally against the "gage 8 in position to be operated upon. The main shaft'lO isoperated by a 'drivingpulley 12, the shaft supporting the various cams for operating the several mechanisms including the gripper. Said gripper comprises jaws 14, 16 carried by shanks 13, 15 which are ar-.

ranged substantially perpendicular to the last bottom and are so connected as topermit independent relative longitudinal movement for opening or closing the gripper but which are moved together for imparting the usual movements to the gripper, as will be eX- plained. The gripper is mounted in the front endof alever 18 which is pivoted at 20 and of a cam'28 acting to depress an arm 29 which actuates the shank 15 of the movable gripper jaw in the usual manner in machines of this type. Overdraw movement is imparted to the'gripper by a rod 30 connected to the gripper at its forward end and "impelled for wardly by a' spring lever 32'engaging its rear end, the movement of the overdraw rod being controlled bya cam 3 L engaging a cam roll 36 mounted on the rod.

A combined wiper and tack carrier 21 is mounted on a longltudlnally movable bar 23 which ls'reciprocated by a lever 25 operated by a c'am'27 on the shaft 10.. 'Tacks are dev livered to the tack carrier 21 from a double raceway 29 by a separating and feeding de vice 81. The raceway is provided with two channels for supplyingditferent kinds of fastenings, for example, different lengths of tacks, the longer tacks being used at'the toe and heel'in McKay work and the shorter tacks atthe sides and shank.

The grippers are moved laterally from side to side of their central position by a rock shaft 40 having fixed thereon pinion 42 engaged by a segment rack on a lever as which 15 actuated to rock the shaft 40 by a connection with a cam path in the front face rocker I The shaft 1O is tubular and a shaft 50 is contained therein (Figs. 2 and l).

Splined on the shaft a0 is a sleeve 42 having a spiral slot 541 into which projects a pin 56 fixed in the shaft by a set screw 58. The shaft a0 is slotted at a right angle to its axis topermit movement of the pin 56 when the shaft 50 is rotated. T he sleeve 52 is grooved at 60 to receive rolls on the arms of a yoke 62 which yoke forms one arm of angle lever pivoted at64l, the other arm 66 being bifurcated and pivoted to an operating rod 68. The rod 68 is guided at its lower end through a bracket 70 on the machine frame and has clamped thereto a block 72 carrying a roll 7a arranged to engage an inclined slot in a block 76 formed on the end of a knee lever 78. The knee lever is pivoted at 80 to the machine frame and is operated by a knee yoke 82 to cause the rod 68 to be moved up and down and to cause the sleeve 52 to be moved longitudinally on the shaft 10. This movement causes rotation of the shaft 50 relatively to the shaft 10 because of the action of the spiral slot 54: upon the pin-56. The shaft 50 is provided at its front end with a pinion 84 which'engages teeth 86 formed on a sliding plate 88 which is held in place on the block 48 by studs 90 which pass through slots in the block 18'and are held iii-place by screws 92 andwashers 9 1-, as shown in Fig. 5. On the plate 88 is a hearing stud 96 carrying a sleeve 98 to which is secured by cone bearing screws 160 a yoke 102 which is connected to the gripper by the usual mechanism for yieldingly imparting thereto its lateral movements. seen that, by movement of the kneelever 78, the position of the bearing stud96 relatively to the axis of oscillation of the rocker 48 may be controlled andpositioned either above or below said axis of oscillationor locatedin line with that axis so that no lateral.movement will be imparted to the gripper. 6] hen the stud 96 is in this central or neutralposition, the gripper is located in the longitudinal cross-sectional plane of the machine and centrally ofthe toe of the shoe presented to the machine. Since the toes of shoes prepared for lasting have a pulling over tack at the end of the tee, it is necessary, before beginning the lasting operation, to locate the gripper at one side of this central cross-sectional plane or, speaking with reference to the shoe, at one side of thelongitudinal medianline of the shoe, such position of the gripper being indicated in Fig. '7.

The machine is preferably arranged, as herein shown, to be stopped at a predetermined point in the-cycle at which point the grippers are opened and the rocker 48 is in the position shown in Fig. 5. Suitable stop mechanism for this purpose is disclosed in Letters Patent of the'United States. No. 1,356,406, granted October 19, 1920, on my application. -lVl1en the machine is stopped in this position, movement of'the knee lever It will bev to cause the slide 88 to move upwardly will effect a preliminary lateral movement of the gripper toward the right hand side of the toe, as shown in Fig. 7, and if the slide 88 is moved downward below said position, the gripper will, of course, be positioned on the opposite or left hand side of the shoe. In either case the gripper will be laterally positioned to seize the outwardly bulging portion of the upper on each side of the pulling over tack at the toe.

I However, since the edgeof the upper at neither side of the toe extends in a plane per- .pendicular to the longitudinal median line of the shoe, it is necessary to turn the gripper so that the gripping faces of the aws 'Wlll be substantially parallel with the portion'of upper to be gripped; This also will'be obvious fromFig. 7.

The preliminary turnlng movement of the gripper'in position to grip thestock and the further turning movement of the gripper held in a split clamp formed in'the end of onearm'118- of an angle lever pivoted at 120 to the, machine frame. The stem 117. is

held clamped in the end of the leverby tightening a clamp screw. 119. The other arm 122 of the angle lever extends substantially vertically. (Fig; 2) and has in its upper end a slot 124: in which is'adjustabl'y held a roll stud 126 by a nut 128." A roll 130 upon the stud 126 engages a slot in the lower "end of a lever 132 fulcrumed at 134: on a rigid strut 136 secured tojthe machine frame. ne-

' tween itsends thelevery132 is conne'cted bya ball joint 138 to oneend of a connecting) rod 140. The'other end of the connecting rod is pivoted at 14-2 to a slide 1 14: having, on itsfron't face teeth146 which-engage teeth formed in a ball 139 by which the gripper shank 13 is supported, the construction being such thatwhen-the slide 1 1-4: is moved longitudinally, the gripper will be turned about the longitudinal axis of its shank portion 13. p

It will now be clear that upward movement of the'arm 118 will'swing the arm 122 to the left (Fig. 2) and cause a. c'orrespond'-;

mg movement of the slide 144 to twister turn the gripper 111 a counter-clockwise d1-.

rection. 'Such a movement is effected by operat ng the knee leverto move the slide 88'.

upwardly beyond its neutral positionby reason of the action of the block 112 in the slot 114. of the block 116 fixed to the end of the arm 118, the amount of movement being-"do; termined by the angular relation of the slot 114 to the direction of upward sliding movement of the slide 88 the block 48 on which the slide 88 moves being assumed to be in the position shown in Fig. 4 which is the position it assumes when the machine is stopped. The amount of this preliminary turning movement of the gripper may be varied by changing the angular relation of the slot 114 in the block 116 relatively to the direction of movement of the slide 88 which may be doneby loosening the screw 119 and turning the stud 117 in the end of the arm 118.

For this purpose the outer end of "the stud 117 is provided with a slot 115 which preferably extends in the same direction as "the slot 114 and'in which an implement may be inserted to turn the block 116. The slot 115, being readily seen by the operator, indicates to him the setting of the slot 114. If the slot 114 is arranged parallel with the direction of movement of the slide 88, movement of the slide will, of course, impart substantially no turning movement to thegripper, and if the slot is arrangedat right angles *to the direction of movement of the slide, the greatest amount of angular turning movement will be imparted'to the gripper 'by the preliminary upward movement of the-slide, while the power effected rocking motionof the block 48 would impart substantiallylno turning movement to thepin'c'ers. The setting of the block 116 is preferably suchithat, during the preliminary setting of the slide to movethe gripper laterally, it will be given a sufficient turning. movement to enable it properly to grasp the outwardly bulging upper at the side of the toe, as indicated for instance in Fig. 7 The operation of the mechanism above described will perhaps be made clearer by the diagram of Fig. 6 in which the line marked 48 indicates the position of the rocker 48 before the machine is'started and the dotted line 48 the position to which it is rocked during each cycle of the machine. 8 I 120 indicates'the pivot of the angle lever 118,122, and 117 the initial position of the center of the block 116 carried by the arm 118, succeeding positions being indicated by 117 and 117 The center of the stud 110 on the slide 88 initially coincides with the center 117 and its successive positions are indicated by 110' and 110 ,VVhen the slide 88 is moved upwardly manually by the knee lever, the studcllO assumes theiposition 110 and the center 117, the position 117 causing the arm 118 to be moved to 118 through the angle indicated. This, of course, causes a counter-clockwise turning movement of the gripper and a lateral positioning movement toward the right. When the rocker 48 is moved by power to the position 48 the stud v110 is moved to the, position 110', the center 117 caused to assume the position 117*, and the arm 118 moved through the angle in:

tweenthe gripper and the toe tack.

liminary turning movement toward the right or clockwise. This positionsthe gripper for operating on the upper at the left side of the toe. 'When the machine is started the lower end of the block 48 will, of course, move to the right, causingthe gripper to move toward the right or toward. the longitudinal median line of the shoe and at the sametime causing further turning movement given position of the slide 88 is determined by changing the location in the 'slot 124.

Itwill be understood, of.course,-tha't, after giving the gripper its proper'preliminary position onone side of the toe for the first operation ofthe gripper to last the upper, the operation may; be continued, without stoppin the machine, to last successively portions of the upper along the side of the toe, and that during this operation the knee lever may be manipulated to vary the-lateral and turning movements of the gripper, as the condition of the stock demands.

Referring to Figs. 7 and 8, Fig. 7 indicates the position the gripper has been made to assume by the preliminary movement of the knee lever to move the slide 88 upwardly and position the gripper laterallytoward the right for turning it toward the 'left or counter-clockwise'into position to seize the upper. Fig. 8 shows the action of the gripper after the machine starts, the gripper having turned furthertoward the left or counter-clockwise, so as to form a'plait be- In the of'the roll stud 126 subsequent operations of the gripper, the

plait will also be formed on that'side of the gripper which is toward the toe. In operating upon the other side of the toe, the action will be reversed, the gripper being given a preliminary position to the left of the longi-' 1 20 tudinal'median line of the shoe and turned in a clockwise direction preliminarily. and being operated by power to move to, the right toward the longitudinal median line of the shoe and turned further in a clockwise direc- 7 tion thereby forming a'plait on the side of the gripper toward the toe, It will be underinnersole and secured by tacks, as is usual in the type of lasting machine herein set forth;

Having thus described my invention, what draw and overdraw movements of the gripper, means forgiving the gripper a lateral movement, after it grips the stock, 1nwardly of the shoe, and means for giving the gripper a turning movement in' a similar direction.

2. In a machine of the class described, .the

combination of a gripper having its shank disposed substantially perpendicularto the shoe bottom, means for operating the gripper to seize the stock, means for effecting updraw and overdraw movements of the gripper, means for giving the gripper a lateral movement toward the right, and means for giving the gripper simultaneously a turning movement toward the right or clockwise.

3. In a machine of the class described, the combination of a gripper having its shank disposed substantially perpendicular to the shoe bottom, means for operating the gripper to seize the stock, means for effecting updraw and overdraw movements of the gripper, means forgiving the gripper a lateral movement toward the right, means for giving the gripper simultaneously a turning movement toward the right or clockwise, and means under the control of the operator constructed and arranged to cause both movements to be reversed.

i. In a machine of the class desc'ribechthe combination of a gripper having its shank disposed substantially perpendicular to the shoe bottom, a rocker for effecting lateral movement of the gripper after it grips the stock, and connections between'the rocker and the gripper forgiving the gripper a movement corresponding in direction of rotation to said lateral movement.

5. In a machine of the class described, the combination of an upper tensioning gripper arranged with its shank substantially perpendicular to the shoe bottom, means under the control of the operator for imparting to the gripper lateral upper tensioning movements either to the right or left toward a central position, and means for imparting a turning movement to the gripper which is toward the right or clockwise when the lateral movement is toward the right and toward the left or counter-clockwise when the lateral movement is toward the left.

6. A lasting machine having, in combination, a gripper adapted to seize a portion of the upper, means for operating the gripper to work the upper over the shoe bottom, manually operable means to position the gripper preliminarily at one side of the central cross-sectional plane of the machine-and to turn the gripper at an angle to said plane, and power means for effecting a further angular movement of the gripper in the same direction to plait the upper and for moving the gripper toward said plane.

7. A lasting machine having, in combination, a gripper adapted to seize a portion of the upper, means for operating the gripper to work the upper over the shoe bottom, manually operable means to position the gripper preliminarily at one side of the central cross-sectional plane of the machine and to turn the gripper at an angle to said plane which angle may be varied without effecting lateral movement, and power means for effecting a further angular movement of the gripper in the same directionto plait the upper and for moving the gripper toward said plane. V I

8. A lasting machine having,in combination, a gripper adapted to seize a portion of the upper, means for operating the gripper to work the upper over the. shoe bottom,

manually operable means to position the gripper preliminarily at one side of ashoe tral cross-sectional plane of the machine and to turn the gripper at an angle to "said plane, means constructed and arranged for adjustment to vary the preliminarly turning movement of the gripper while maintaining the amount of lateral movement of the same, power means for effecting a further turning movement of the gripper to plait the upper in the same direction as the preliminary turning movement, and means to effect a lateral movement of the gripper inwardly of the shoe to lay the plaited upper over the shoe bottom.

10. A lasting machine having, in combination, a gripper adapted to seize a portion of the upper at the side of a shoe toe, means for operating the gripper to .work the upper over the shoe bottom, said gripper being arranged to have a predetermined amount of turning movement in either direction from a central position, means adaptedfor operation for causing a predetermined portion of aid turni g movem nt to t k P e be ore the stock is gripped, and power means for continuing said turning movement of the gripper during the movement of the gripper over the shoe bottom. I

11. Inamachine for lasting shoe toes, an upper tensioning gripper arranged to be operated to tension the upper over the last, means operable manually to position the gripper at one side of the longitudinal median line of the toe, and power operated means for moving the gripper toward said median line and for turning the gripper in the same direction as that in which the power eil'ected lateral movement takes place.

12. In a machine for lasting shoe toes, an upper tensioning gripper arranged to be operated to tension the upper overthe last, manually operable means to move the gripper laterally or" the shoe toe toward the right to position it for seizing the stock, and means operating under power actuation of the machine to move the gripper laterally toward the left and to turn the gripper counter-clockwise to plait the upper.

13. In a machine for lasting shoe toes, an upper tensioning gripper arranged to be operated to tension the upper over the last, means operable manually to move the gripper laterally of the shoe toe toward the left to position it for seizing the stock, and means operating under power actuation of the ma chine to turn the gripper'toward the right or clockwise to plait the upper.

14. In a machine for lasting shoe toes, an upper tensioning gripper arranged to be operated to tension the upper over the last, means arranged for adjustment to permit manual location of the gripper at one side of the longitudinal median line of the shoe toe without affecting the angular position, and power means for moving the gripper toward said longitudinal median line and for turning the gripper to plait the upper. v

15. In a machine for lasting shoe toes, an upper tensioning gripper arranged to be operated to tension the upper over the last, means arranged for adjustment to permit manual location of the gripper at one side of the longitudinal median line of the shoe toe without affecting the angular position, and power means for moving the gripper toward said longitudinal median line and for turning the gripper in the same direction as the power efi'ected lateralmovement to plait the upper.

16. In a machine for lasting shoe toes, an upper tensioning gripper arranged to be operated to tension the upper over the last, means arranged for adjustmentto permit manual location of the gripper at one side of the longitudinal median line of the shoe toe and for giving the gripper substantially its full turning movement to cause it to seize a portion of upper disposed at a wide angle to the last edge, and power means for moving the gripper toward the median line of the shoe toe without substantial turning movement. 7 I

17 In a machine for lasting shoe toes, an upper tensioning gripper-arranged to be operated to tension the upper over the last, means for initially positioning the gripper at one side or the other of the longitudinal median line of the shoe toe and "for setting the gripper angularly to receive the margin of the shoe upper, and power means for op erating the gripper towork the stock over the shoe bottom including means for moving the gripper toward said longitudinal inedian line and turning the gripper in the same direction in which it was turned in setting it to receive the stock.

18. In a machine for lasting the toe of a pulled over shoe having a tack in the center of the toe, the combination of a gripper for seizing and tensioning the stockover the shoe bottom, a single means for setting the grip per laterally of the toe at one side of the tack and turning the gripper to seize the upper, and means for turning the gripper farther in the direction of its setting movement to form a plait in the upper between the gripper and the tack.

In testimony whereof I have signed my name to this specification.

THOMAS H. SEELY. 

